Works of art often last forever, or nearly so. But exhibitions themselves, especially gallery exhibitions, are like flowers; they bloom and then they die, then exist only as memories, or pressed in magazines and books. Unless someone has the time, money and obsession to regather the work, research how it appeared and rehang a show -- and the Zwirner & Wirth gallery has all those things, plus the understanding that forays into recent history burnish the reputation.
